Rydberg atomic antennas for 6G wireless communications: technical architecture and application prospects
Rydberg atomic antennas can achieve ultra-precise measurement of the amplitude, frequency, and phase of narrowband electromagnetic (EM) waves with specific frequencies by utilizing the extremely sensitive EM response of the highly excited states, namely the Rydberg states, of alkali metal atoms (e.g...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2025-07-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2025124/ |
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| Summary: | Rydberg atomic antennas can achieve ultra-precise measurement of the amplitude, frequency, and phase of narrowband electromagnetic (EM) waves with specific frequencies by utilizing the extremely sensitive EM response of the highly excited states, namely the Rydberg states, of alkali metal atoms (e.g., rubidium and cesium). Compared with traditional antennas, the Rydberg atomic antenna exhibits favorable engineering benefits toward 6G wireless communications systems, such as ultra-wideband detuning characteristics, narrowband filtering characteristics, thermal-noise-free characteristics, and extremely high sensitivity. Firstly, the quantum model of Rydberg atoms was elucidated to reveal the operating mechanism of Rydberg atomic antennas. Next, the noise sources were systematically analyzed, underscoring a markedly lower noise figure compared with conventional conductive antennas. Building on these findings, the antenna’s applications and research progress in wireless communications and sensing were summarized, and future prospects were proposed that capitalize on its low-noise and high-sensitivity characteristics. |
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| ISSN: | 1000-436X |